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CVE-2024-56534

17
FAUCET Score

CVE-2024-56534 describes a memory leak vulnerability in the Linux kernel's ISOFS filesystem driver. Specifically, the opt->iocharset parameter, which stores character set information, is not always freed when certain error conditions prevent the isofs_fill_super function from executing. This affects Linux kernel versions where the ISOFS module is present. The vulnerability has a CVSS score of 5.5 (Medium), indicating a local attack vector with low complexity, requiring local privileges. The primary impact is a high availability risk (A:H) due to the memory leak, which could potentially lead to system instability or denial of service over time. There is no confidentiality or integrity impact. Currently, there is no evidence of active exploitation, and no public exploit code (Metasploit, Nuclei, ExploitDB) is available. Community discussion and media coverage for this CVE are minimal, suggesting low public awareness and attention.

Impacted Technologies

VendorProductVersion(s)CPE
>= 6.10, < 6.11.11CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 6.12, < 6.12.2CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

5.5MEDIUM

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
1.8
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.25%
Probability of exploitation in next 30 days
EPSS Percentile
16.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0025 is in the 69th percentile among its peer group of 15,940 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Advisories (1)

redhatCVE-2024-56534Low

kernel: isofs: avoid memory leak in iocharset

Dec 27, 2024

References

git.kernel.org / stable/c/0b5bbeee4de616a268db77e2f40f19ab010a367b
Patch
git.kernel.org / stable/c/0fbab266ca8000333c966f5b58cb9b9cac658573
Patch
git.kernel.org / stable/c/34f090ddb3630a26e5a6b220bf3bfaf5c7b70393
Patch